The base of the insole supports the rearfoot and provides structure and stability to the foam layer, reinforced with EVOLyte™, Superfeet’s proprietary carbon fiber & polymer blendThe beveled foam edge improves the fit in tighter fitting footwear.Perforations under the midfoot and forefoot reduce weight and improve breathabilityAccommodates a wider range of footwear.The thinnest Superfeet insole.Lightweight, durable closed-cell foam delivers long lasting comfort for tight-fitting athletic footwear.All natural coating that eliminates odor-causing